Amazon Linux 2 & Firewalld

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Another one for the Things To Remember category … after creating a new Amazon Linux 2 instance, it’s important to update firewalld to allow http & https traffic.

To do this, you need to use the firewall-cmd CLI command:

sudo firewall-cmd --zone=public --add-service=http --permanent
sudo firewall-cmd --zone=public --add-service=https --permanent
sudo firewall-cmd --reload

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